From: Jani Nikula <jani.nikula@linux.intel.com>
To: "Dan Carpenter" <dan.carpenter@oracle.com>,
"José Roberto de Souza" <jose.souza@intel.com>
Cc: David Airlie <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, kernel-janitors@vger.kernel.org,
dri-devel@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro
Date: Thu, 15 Aug 2019 12:08:53 +0300 [thread overview]
Message-ID: <87lfvug5i2.fsf@intel.com> (raw)
In-Reply-To: <20190815083336.GE27238@mwanda>
On Thu, 15 Aug 2019, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> This macro doesn't work because the right shift has higher precedence
> than bitwise AND.
>
> Fixes: 9749a5b6c09f ("drm/i915/tgl: Fix the read of the DDI that transcoder is attached to")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Thanks, already fixed by 1cdd8705c7ac ("drm/i915/tgl: Fix missing
parentheses on TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT").
BR,
Jani.
> ---
> drivers/gpu/drm/i915/i915_reg.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 4a947bd0a294..def6dbdc7e2e 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -9433,7 +9433,7 @@ enum skl_power_gate {
> #define TRANS_DDI_SELECT_PORT(x) ((x) << TRANS_DDI_PORT_SHIFT)
> #define TGL_TRANS_DDI_SELECT_PORT(x) (((x) + 1) << TGL_TRANS_DDI_PORT_SHIFT)
> #define TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) (((val) & TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT)
> -#define TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) (((val) & TGL_TRANS_DDI_PORT_MASK >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
> +#define TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT(val) ((((val) & TGL_TRANS_DDI_PORT_MASK) >> TGL_TRANS_DDI_PORT_SHIFT) - 1)
> #define TRANS_DDI_MODE_SELECT_MASK (7 << 24)
> #define TRANS_DDI_MODE_SELECT_HDMI (0 << 24)
> #define TRANS_DDI_MODE_SELECT_DVI (1 << 24)
--
Jani Nikula, Intel Open Source Graphics Center
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prev parent reply other threads:[~2019-08-15 9:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 8:33 [PATCH] drm/i915/tgl: Fix TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT() macro Dan Carpenter
2019-08-15 9:04 ` ✗ Fi.CI.BAT: failure for " Patchwork
2019-08-15 9:08 ` Jani Nikula [this message]
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